diff --git a/src/libs/ReportUtils.ts b/src/libs/ReportUtils.ts
index 8b02706c52d5..b2f75a95ba79 100644
--- a/src/libs/ReportUtils.ts
+++ b/src/libs/ReportUtils.ts
@@ -4963,7 +4963,7 @@ function buildOptimisticChangedTaskAssigneeReportAction(assigneeAccountID: numbe
             {
                 type: CONST.REPORT.MESSAGE.TYPE.COMMENT,
                 text: `assigned to ${getDisplayNameForParticipant(assigneeAccountID)}`,
-                html: `assigned to <mention-user accountID=${assigneeAccountID}></mention-user>`,
+                html: `assigned to <mention-user accountID="${assigneeAccountID}"/>`,
             },
         ],
         person: [